... drawings or samples2Screw Spike(fishtail bolt)Square head screw spike M22*145M22*155M22*165M22*185M22*195Other kinds ... SpikeSquare 16*165Other kinds TypeSpecification Weight/kg SurfaceStandard 3Sleeper Screw Ss 1/120M22*120·Zinc, Plain, Oil, Black ... kinds are available 6Spring washer/Flat washersleeper screw,railroad screwHex head screw spike,fishtail bolt,railway project,railroad ties, ...